Kroh, A.; Mooi, R. (2021). World Echinoidea Database.
Apoxypetalum McNamara, 1993 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=689454 on 2024-10-12
Marine Species Traits editorial board (2024). Marine Species Traits.
Apoxypetalum McNamara, 1993 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=689454 on 2024-10-12